13123120013197 has 8 divisors (see below), whose sum is σ = 13131314002296. Its totient is φ = 13114928558592.

The previous prime is 13123120013183. The next prime is 13123120013239. The reversal of 13123120013197 is 79131002132131.

It can be written as a sum of positive squares in 4 ways, for example, as 715071493161 + 12408048520036 = 845619^2 + 3522506^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13123120013197 - 2²³ = 13123111624589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123120013137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9778543 + ... + 11039299.

It is an arithmetic number, because the mean of its divisors is an integer number (1641414250287).

Almost surely, 2^{13123120013197} is an apocalyptic number.

It is an amenable number.

13123120013197 is a deficient number, since it is larger than the sum of its proper divisors (8193989099).

13123120013197 is a wasteful number, since it uses less digits than its factorization.

13123120013197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267247.

The product of its (nonzero) digits is 6804, while the sum is 34.

The spelling of 13123120013197 in words is "thirteen trillion, one hundred twenty-three billion, one hundred twenty million, thirteen thousand, one hundred ninety-seven".